latest on the ferry disaster in South Korea. The search, more and more desperate. The captain will be charged. And ABC's Gloria Riviera is covering it from jindo, south Korea. Reporter: That's right. News of an arrest warrant issued for the captain and two crew members. We got details about what was said when the ship radioed for help at 8:55 A.M. Our ship is in danger. Then, can't move. Please come. Finally, a question from land, any danger to human life. And the answer, impossible to check. Overnight, new video from inside the ship shows the fight for survival. Released by Korea's kds network, passengers growing afraid. Water's rising, said one. Water's coming in. The extreme tilt wedging these people into a corner. Some passengers walking on walls. This man, using a fire hose as a lifeline. Elsewhere onboard, a teacher texted the students. If you can get a lifevest, wear it. Okay, replies one. Then, everyone, let's live and see each other soon. This morning, divers got inside the doomed vessel for the first time. Just after 10:00 A.M., a pair of Navy divers swam into the cafeteria, where it's believed so many were trapped. 45 minutes later, the team starts pumping compressed oxygen into the ship, in the desperate hope someone needs it. They found several bodies huddled together. And there was this moment, the ferry sinking even further into the sea. Gone. Cranes arriving to try to salvage the sunken ship. The U.S. Navy, this morning, also aiding in the search effort. Today, the criminal investigation into the disgraced captain's actions told ABC news, when the vessel started to tilt, he put the third mate in charge. Someone with just over a year's experience at the helm. One of his best friends is missing. My friend, he was ridiculously nice, he said. I have no idea how someone is going to survive in that cold water. Inside this gym, wall-to-wall grief. So many loved ones still missing. Their families, desperately waiting for answers and clinging to hope. George, I'm so sorry to say there is more devastating news to report from here tonight. The vice principal from the high school, found this afternoon, he had been on the ship but survived. It appears he took his own life, unable to go on in the face of this tragedy.

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